EP 0713681 B1 20070718 - METHOD AND DEVICE FOR MULTICHANNEL DIGITAL RECEPTION AND ULTRASONIC DIAGNOSTIC DEVICE
Title (en)
METHOD AND DEVICE FOR MULTICHANNEL DIGITAL RECEPTION AND ULTRASONIC DIAGNOSTIC DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM DIGITALEN MEHRKANALEMPFANG UND ZUR DIAGNOSE MITTELS ULTRASCHALL
Title (fr)
PROCEDE ET DISPOSITIF POUR UNE RECEPTION NUMERIQUE MULTICANAL ET DISPOSITIF DE DIAGNOSTIC A ULTRASONS
Publication
Application
Priority
- JP 9827494 A 19940512
- JP 9500914 W 19950511
Abstract (en)
[origin: WO9531135A1] Phased signals of multiple channels are added without sampling clocks of multiple phases, and the limit to the frequency of a reference wave is reduced even at a constant sampling rate. The multichannel digital receiving device comprises a probe (2) which receives ultrasonic echo signals and outputs analog reception signals through multiple channels, A/D converters (31-3x), delay circuits (41-4x) which are respectively provided for the channels and delay digital data by prescribed delay time, digital quadrature detecting circuits (61-6x) which perform digital quadrature detection of delayed digital data and extract channel in-phase components and channel quadrature components, an adder circuit (71) which adds the channel in-phase components and outputs a synthesized in-phase component, and another adder circuit (7Q) which adds the channel quadrature components and outputs a synthesized quadrature component (7Q).
IPC 8 full level
A61B 8/00 (2006.01); G01S 7/52 (2006.01); H04J 11/00 (2006.01)
CPC (source: EP KR US)
A61B 8/00 (2013.01 - KR); G01S 7/52025 (2013.01 - EP US); G01S 7/52028 (2013.01 - EP US); H04J 11/00 (2013.01 - KR)
Designated contracting state (EPC)
DE IT
DOCDB simple family (publication)
WO 9531135 A1 19951123; CN 1128493 A 19960807; CN 1152650 C 20040609; DE 69535537 D1 20070830; DE 69535537 T2 20080403; EP 0713681 A1 19960529; EP 0713681 A4 19991208; EP 0713681 B1 20070718; JP 3329575 B2 20020930; JP H07303638 A 19951121; KR 0156087 B1 19981116; KR 960703537 A 19960831; US 5684484 A 19971104
DOCDB simple family (application)
JP 9500914 W 19950511; CN 95190419 A 19950511; DE 69535537 T 19950511; EP 95918181 A 19950511; JP 9827494 A 19940512; KR 19960700082 A 19960109; US 54986195 A 19951016